Protective action of lutein against blue light on human skin cell lines

Abstract

Human skin can be protected against damage upon exposure to blue light by application of an effective amount of lutein to the skin.

We claim: 
     
         1 . A method of protecting human skin against damage upon exposure to blue light, comprising the step of applying a composition containing an effective amount of lutein to the skin. 
     
     
         2 . The method of  claim 1 , wherein the lutein prevents the exposure of blue light to keratinocytes and fibroblast cells by absorbing the blue light. 
     
     
         3 . A method of protecting human skin premature signs of aging, comprising the step of applying a composition containing an effective amount of lutein to the skin to block blue light rays that thereby reducing the induction of cytotoxicity in HEK and HDF cells. 
     
     
         4 . A method of reducing the generation of reactive oxygen species in humans when exposed to blue light, comprising the step of applying a composition containing an effective amount of lutein to the skin.